<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
    Object isValid = request.getSession().getAttribute("userIsValid");
    if (isValid==null||Boolean.valueOf(isValid.toString())!=true) {
        request.getRequestDispatcher("login.html").forward(request, response);
    }
%>



<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title></title>
    <link rel="stylesheet" type="text/css" href="css/reset.css"/>
    <link rel="stylesheet" type="text/css" href="css/index.css"/>
</head>
<body>
<div id="topDiv">
    贵州大学明德学院网络171学生信息管理系统
</div>
<div id="middleDiv">
    <div id="leftDiv">
        <ul>
            <!-- 无序列表 -->
            <li>
                <a href="user/insert.jsp" target="mainTarget">添加用户</a>
            </li>
            <li>
                <a href="/user?type=list" target="mainTarget">用户列表</a>
            </li>
            <li>
                <a href="http://www.taobao.com/" target="mainTarget">淘宝网</a>
            </li>
            <li>京东网</li>
        </ul>
    </div>
    <div id="rightDiv">
        <iframe id="mainTarget" name="mainTarget" src="http://www.baidu.com/" width="" height=""></iframe>
    </div>

</div>
<div id="bottomDiv">
    底端部分
</div>
</body>
</html>

